Kerio - How do I handle this?

Just switched over to Kerio this afternoon...it past port probe tests on GRC and some tests on PC Flank, but then on the quick test I got the following warning:
The test found visible port(s) on your system: 80
Recommendation:
Install personal firewall software. If you have already installed and are using a firewall, check if it is set to make all the ports of your computer invisible (hidden). If it is, then get new firewall software and redo this test.

Sorry, I know this is a dumb question, but I'm learning here...

What rule can I type in to Kerio to make all ports on my computer invisible (stealthed), hidden...?

Attached Files:

I use Kerio 2.1.4 and have had no trouble. To arrive at this unbeatable situation one has to first scrap all those preset rules and start from scratch as well as limiting your browser port privileges.

In conjunction with this I use Naviscope 8.70 with its privacy features to enable even more added security. It only has the same ports' access as IE6 and still works brilliantly blocking referrer, User Agent etc.

Just have a look at the ruleset courtesy of the Kerio Support Group at Yahoo and use basic rulesets as stated. I pass stealth in my Win98SE at every site and have never failed a test yet.